Structure 1100073 · Mercer County, NJ

Titus Mill Road over Stony Brook

Carries Titus Mill Road over Stony Brook, 0.8 Mi East Of RT 31.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT101 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

101 ft end to end, longest span 46 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built201214 years old
Length101.0 ft30.8 m
Daily traffic1,686counted 2023
Last inspectedFebruary 2023every 24 months

Location

StateNew Jersey
CountyMercer
Location0.8 Mi East Of RT 31
CarriesTitus Mill Road
CrossesStony Brook
Coordinates40.34925, -74.78208

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length101.0 ft (30.8 m)
Max Span45.9 ft (14 m)
Deck Width48.9 ft (14.9 m)
Deck Area458.9 sq m
Main Spans2
Year Built2012

Traffic

Avg Daily Traffic1,686 (2023)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number1100073

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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